水驱砂岩油藏开发指标评价新体系  

A new evaluation system for waterflooding sandstone reservoirs

作　　者：苏彦春 王月杰 缪飞飞 

机构地区：[1]中海石油(中国)有限公司天津分公司渤海石油研究院,天津300452

出　　处：《中国海上油气》2015年第3期60-65,共6页China Offshore Oil and Gas

基　　金："十二五"国家科技重大专项(编号:2011ZX05024-002-007)部分研究成果

摘　　要：为了准确、客观地评价不同流体性质、不同储层物性、不同开发阶段水驱砂岩油藏的开发效果,从井网完善程度、开发状况及注水状况等3个方面出发,选取了含水上升率、产量递减率、存水率、地层压力、水驱储量控制程度和水驱储量动用程度等6项评价指标,研究了指标理论变化规律,规范了指标的计算方法,在此基础上确定了各指标的评价标准,构建了新的评价体系。应用效果表明,新建体系评价结果准确可靠,能够为油田调整挖潜提供理论依据和方向。目前该评价体系已在渤海海域27个水驱砂岩油田或单元推广应用。The development effect of different waterflooding sandstone reservoirs with different fluid prop- erties and reservoir qualities is different from each other, especially in different development stages. In or- der to accurately evaluate the development effect of these types reservoirs, six indices are selected from three aspects, i. e. , completeness of well pattern, development condition and injection condition. The six indices are the increased rate of water cut, the rate of production decline, net injection percent, formation pressure, reserves controlling degree, and reserves producing degree. The theoretical varying trends of some indices are studied and the calculation methods of them are standardized. On this basis, evaluation standards of the six indices are determined. Applications show that the evaluation result is consistent with the field data and can provide a theoretical basis for reservoir adjustment. Now, the evaluation system has been applied in 27 waterflooding sandstone reservoirs or development blocks in Bohai sea.

关 键 词：水驱砂岩油藏 开发效果评价 含水上升率 产量递减率 存水率 地层压力 水驱储量控制程度 水驱储量动用程度 评价标准 渤海海域 

分 类 号：TE341[石油与天然气工程—油气田开发工程]